Locating the Mandibular Lingula Using Cone-Beam Computed Tomography: A Literature Review

Area of Science:

• Dentistry
• Radiology
• Anatomy

Background:

• Accurate identification of the mandibular lingula (ML) is crucial for dental procedures.
• Cone-beam computed tomography (CBCT) is a widely used imaging modality in dentistry.
• Understanding ML location and distances to anatomical landmarks is essential for surgical planning.

Purpose of the Study:

• To systematically review existing literature on the anatomical location and distances related to the adult mandibular lingula (ML).
• To synthesize data derived from cone-beam computed tomography (CBCT) investigations.
• To assess variations in ML location and associated measurements based on demographic factors.

Main Methods:

• A comprehensive literature search was performed across PubMed, Web of Science, and Embase databases.
• Studies published between 1970 and 2021 investigating ML location using CBCT in adults (≥18 years) were included.
• Data extraction focused on distances from the ML to the anterior ramus border, posterior ramus border, sigmoid notch, inferior ramus border, and occlusal plane.

Main Results:

• Eight studies met the inclusion criteria for this review.
• The mean distance from the mandibular lingula (ML) to the anterior ramus border ranged from 15.57 to 20 mm.
• In the majority of analyzed cases, the ML was predominantly located superior to the occlusal plane.

Conclusions:

• The mandibular lingula (ML) is typically situated above the occlusal plane.
• No statistically significant differences in ML location or related distances were found concerning sex, ethnicity, or skeletal patterns.
• CBCT provides reliable data for determining ML location and distances, aiding in predictable clinical outcomes.